CN101699221A - Limiting mechanism of rotary table capable of rotating within 360 DEG - Google Patents
Limiting mechanism of rotary table capable of rotating within 360 DEG Download PDFInfo
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- CN101699221A CN101699221A CN200910217818A CN200910217818A CN101699221A CN 101699221 A CN101699221 A CN 101699221A CN 200910217818 A CN200910217818 A CN 200910217818A CN 200910217818 A CN200910217818 A CN 200910217818A CN 101699221 A CN101699221 A CN 101699221A
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- rotary table
- guide groove
- support arm
- limiting mechanism
- shape guide
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Abstract
The invention relates to a limiting and protecting mechanism of a rotary table, in particular to a limiting mechanism of a rotary table capable of rotating within 360 DEG. The mechanism comprises a support arm fixedly connected with the rotor of the rotary table, a planar spiral guide groove arranged on the upper end of the base of the rotary table and a sliding block of which the upper end is hinged on the support arm and the lower end is correspondingly inserted in the planar spiral guide groove, wherein the sliding block is in a freely sliding state in the planar spiral guide groove. The mechanism has the advantages of simple structure, stability and reliability, is particularly suitable to be used on a rotary table of a multi-position strapdown rate gyro compass system and also can be widely used as a limiting and protecting mechanism for other swing mechanisms.
Description
Technical field
The invention belongs to the position limitation protection mechanism of turntable, particularly a kind of limiting mechanism of rotary table of realizing that rotor rotates in 360 ° of scopes.
Background technology
At present, in multiposition strapdown north-seeking system, will move and transfer gyro to be vertically mounted on the turntable, its sensitive axes is parallel with table top, the induction rotational-angular velocity of the earth.The control turntable from reference position be rotated counterclockwise, pause, rotate, pause ..., turntable n the angle position that pause at interval in the week, collection gyro signal when each angle position is static.In order to guarantee The measuring precision, require the turntable slewing area to reach 360 ° of gamuts, do not allow the dead angle.For the appearance that prevents situations such as driving damages stube cable, adopt and conducting ring to be installed on the rotor of turntable to rotate, but this device has brought bigger noise with the gamut that realizes rotor, the acquisition process work of signal is brought big difficulty.Take the mechanical position limitation mechanism of some other form, in the turntable rotation process, there is bigger friction again, or near 360 ° the time, having an instantaneous collision contact process, these power can produce certain influence to the stability of turntable, are unfavorable for the stability of servo-drive system.
Summary of the invention
The objective of the invention is to propose a kind of novel limiting mechanism of rotary table of realizing rotation in 360 ° of scopes, with the spacing technical matters of effective solution multiposition strapdown north-seeking system turntable.
The present invention can realize the limiting mechanism of rotary table of rotation in 360 ° of scopes, comprise that one is connected in the epitrochanterian support arm of turntable, be arranged on the snail shape guide groove of turret base gland upper end, the upper end is hinged and is plugged on slide block in the described snail shape guide groove in described support arm upper and lower end correspondence; Slide block is the state of being free to slide in snail shape guide groove.
The helical pitch of described snail shape guide groove is greater than 360 °, promptly circles round to terminal rotation angle greater than 360 ° from the starting point of snail shape guide groove.
The principle of work of this mechanism is:
When turntable shaft system rotates; being fixed on epitrochanterian support arm drive slide block rotates together; when arriving snail shape groove two ends, slide block is blocked; can not be rotated further; turntable reaches spacing position; because the helical pitch angle of snail shape groove is greater than 360 °; so the slewing area of turntable can realize 360 ° of gamuts; when fortuitous events such as driving occurring when equipment; the cooperation of slide block and helical groove; play the position limitation protection effect; both can avoid causing the damage of equipment stube cable, and owing to be the line way of contact between slide block and the helical groove, friction force between the two is very little; therefore very little to the influence of systems such as table servo, help improving the stability of equipment.The present invention has simple in structure, and reliable and stable advantage also can be widely used in the position limitation protection mechanism of other slew gear.
Description of drawings
Fig. 1 is the schematic perspective view that the present invention is used for the position-limit mechanism on the multiposition strapdown north-seeking system turntable;
Fig. 2 is the structural representation of the shape of snail shown in Fig. 1 guide groove 4.
Embodiment
The embodiment that provides below in conjunction with accompanying drawing describes in further detail the present invention.
With reference to Fig. 1,2, a kind of limiting mechanism of rotary table of realizing rotation in 360 ° of scopes that is used for multiposition strapdown north-seeking system, comprise that one is connected in the support arm 2 on the turntable rotor 1, be arranged on the snail shape guide groove 4 of turret base gland 5 upper ends, the upper end is hinged and is plugged on slide block 3 in the described snail shape guide groove 4 in described support arm 2 upper and lower end correspondences; Slide block 3 is the state of being free to slide in snail shape guide groove 4.
The helical pitch of described snail shape guide groove 4 is greater than 360 °.
Described slide block 3 is to be hinged on support arm 2 by the bearing pin that is set on the described support arm 2.
Claims (3)
1. can realize the interior limiting mechanism of rotary table that rotates of 360 ° of scopes for one kind, it is characterized in that comprising that one is connected in the support arm (2) on the turntable rotor (1), be arranged on the snail shape guide groove (4) of turret base gland (5) upper end, the upper end is hinged and is plugged on slide block (3) in the described snail shape guide groove (4) in described support arm (2) upper and lower end correspondence; Slide block (3) is the state of being free to slide in snail shape guide groove (4).
2. the limiting mechanism of rotary table of realizing rotation in 360 ° of scopes according to claim 1, the helical pitch that it is characterized in that described snail shape guide groove (4) is greater than 360 °.
3. the limiting mechanism of rotary table of realizing rotation in 360 ° of scopes according to claim 1 is characterized in that described slide block (3) is to be hinged on support arm (2) by the bearing pin that is set on the described support arm (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217818A CN101699221A (en) | 2009-11-05 | 2009-11-05 | Limiting mechanism of rotary table capable of rotating within 360 DEG |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217818A CN101699221A (en) | 2009-11-05 | 2009-11-05 | Limiting mechanism of rotary table capable of rotating within 360 DEG |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101699221A true CN101699221A (en) | 2010-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910217818A Pending CN101699221A (en) | 2009-11-05 | 2009-11-05 | Limiting mechanism of rotary table capable of rotating within 360 DEG |
Country Status (1)
| Country | Link |
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| CN (1) | CN101699221A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986404A (en) * | 2010-11-15 | 2011-03-16 | 中国科学院长春光学精密机械与物理研究所 | Electric rotating limiting mechanism |
| CN102493985A (en) * | 2011-12-09 | 2012-06-13 | 中国科学院长春光学精密机械与物理研究所 | Rotary limiting mechanism for turntable |
| CN102566653A (en) * | 2012-01-16 | 2012-07-11 | 中国船舶重工集团公司第七二三研究所 | Limiting mechanism for small rotary table with rotating angle of more than 360 degrees |
| CN103573910A (en) * | 2012-08-10 | 2014-02-12 | 上海新跃仪表厂 | Large-buffer multi-angle limiting mechanism for simulation turntable |
| CN103641015A (en) * | 2013-11-18 | 2014-03-19 | 西华大学 | Axial bearing type circumference rotating adjusting device and application method thereof |
| CN105197852A (en) * | 2015-11-02 | 2015-12-30 | 湖南星邦重工有限公司 | High altitude operating vehicle |
| CN105353774A (en) * | 2014-08-22 | 2016-02-24 | 北京瑞赛长城航空测控技术有限公司 | Limiting mechanism for rotary table with selective rotating angle of between plus or minus 360 degrees |
| CN110470319A (en) * | 2019-09-09 | 2019-11-19 | 航天长屏科技有限公司 | A kind of turntable structure for being limited to high rotation angle degree |
| CN111076747A (en) * | 2019-12-12 | 2020-04-28 | 珠海博杰电子股份有限公司 | Gyroscope test fixture |
| CN111536142A (en) * | 2019-12-20 | 2020-08-14 | 中国航空工业集团公司北京航空精密机械研究所 | Rotary table angle limiting device and rotary table |
| CN112629555A (en) * | 2020-10-23 | 2021-04-09 | 九江精密测试技术研究所 | Monitoring device for preventing electric turntable shafting from galloping |
| CN115164934A (en) * | 2022-06-10 | 2022-10-11 | 北京理工导航控制科技股份有限公司 | Biaxial rotation mechanism and inertial navigation device |
-
2009
- 2009-11-05 CN CN200910217818A patent/CN101699221A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986404B (en) * | 2010-11-15 | 2012-11-07 | 中国科学院长春光学精密机械与物理研究所 | Electric rotating limiting mechanism |
| CN101986404A (en) * | 2010-11-15 | 2011-03-16 | 中国科学院长春光学精密机械与物理研究所 | Electric rotating limiting mechanism |
| CN102493985A (en) * | 2011-12-09 | 2012-06-13 | 中国科学院长春光学精密机械与物理研究所 | Rotary limiting mechanism for turntable |
| CN102566653A (en) * | 2012-01-16 | 2012-07-11 | 中国船舶重工集团公司第七二三研究所 | Limiting mechanism for small rotary table with rotating angle of more than 360 degrees |
| CN102566653B (en) * | 2012-01-16 | 2013-10-23 | 中国船舶重工集团公司第七二三研究所 | Limiting mechanism for small rotary table with rotating angle of more than 360 degrees |
| CN103573910B (en) * | 2012-08-10 | 2016-04-06 | 上海新跃仪表厂 | A kind of large buffering Multi-angle limit mechanism of artificial rotary table |
| CN103573910A (en) * | 2012-08-10 | 2014-02-12 | 上海新跃仪表厂 | Large-buffer multi-angle limiting mechanism for simulation turntable |
| CN103641015A (en) * | 2013-11-18 | 2014-03-19 | 西华大学 | Axial bearing type circumference rotating adjusting device and application method thereof |
| CN103641015B (en) * | 2013-11-18 | 2016-08-17 | 西华大学 | A kind of axial carrying formula circumference rotation adjustment device and using method thereof |
| CN105353774A (en) * | 2014-08-22 | 2016-02-24 | 北京瑞赛长城航空测控技术有限公司 | Limiting mechanism for rotary table with selective rotating angle of between plus or minus 360 degrees |
| CN105197852A (en) * | 2015-11-02 | 2015-12-30 | 湖南星邦重工有限公司 | High altitude operating vehicle |
| CN110470319A (en) * | 2019-09-09 | 2019-11-19 | 航天长屏科技有限公司 | A kind of turntable structure for being limited to high rotation angle degree |
| CN110470319B (en) * | 2019-09-09 | 2023-09-26 | 航天长屏科技有限公司 | Turntable structure for limiting large rotation angle |
| CN111076747A (en) * | 2019-12-12 | 2020-04-28 | 珠海博杰电子股份有限公司 | Gyroscope test fixture |
| CN111536142A (en) * | 2019-12-20 | 2020-08-14 | 中国航空工业集团公司北京航空精密机械研究所 | Rotary table angle limiting device and rotary table |
| CN111536142B (en) * | 2019-12-20 | 2021-05-07 | 中国航空工业集团公司北京航空精密机械研究所 | Rotary table angle limiting device and rotary table |
| CN112629555A (en) * | 2020-10-23 | 2021-04-09 | 九江精密测试技术研究所 | Monitoring device for preventing electric turntable shafting from galloping |
| CN115164934A (en) * | 2022-06-10 | 2022-10-11 | 北京理工导航控制科技股份有限公司 | Biaxial rotation mechanism and inertial navigation device |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100428 |